Water Analysis Combi

With the Combi Water Analysis, you can have your drinking water tested in a laboratory for 23 chemical parameters and selected bacteria. This water test combines testing for heavy metals, minerals and water hardness with a microbiological analysis. It provides a comprehensive overview of important water characteristics and potential contamination.

Why is a water analysis with bacterial testing useful?

In Switzerland, drinking water is regularly monitored and generally supplied in very good quality. However, older household pipes, fittings or prolonged periods of stagnation can affect water quality at the tap. Testing can also be useful for private water supplies, such as spring water or well water.

While the chemical analysis measures concentrations of lead, copper, nickel and other elements, microbiological testing provides information about the hygienic quality of the water. The test examines total bacterial counts at 22 °C and 36 °C, as well as Escherichia coli (E. coli) and coliform bacteria.

When is the Combi Water Analysis recommended?

• When you want to test your tap water for both chemical and microbiological parameters
• In buildings with older plumbing installations or suspected metal contamination
• For testing water from private springs or wells
• When you want to determine water hardness and selected minerals
• If you have questions about the hygienic quality of your drinking water

What does the Combi Water Analysis test for?

The Combi Water Analysis includes 23 chemical parameters and microbiological testing. The laboratory results show the measured concentrations and microbiological findings. Where applicable legal maximum levels or requirements exist, the results can be compared with Swiss drinking water regulations.

Microbiological testing

• Total bacterial count at 22 °C: Measurement of culturable microorganisms under defined laboratory conditions
• Total bacterial count at 36 °C: Additional measurement of culturable microorganisms at a higher incubation temperature
• Coliform bacteria: Hygiene indicators whose presence may suggest a deterioration in water quality
• Escherichia coli (E. coli): An indicator of faecal contamination in water

These 23 chemical parameters are tested

Metals and other elements (14): ✓ Aluminium ✓ Lead ✓ Chromium ✓ Copper ✓ Manganese ✓ Nickel ✓ Iron ✓ Zinc ✓ Strontium ✓ Boron ✓ Barium ✓ Lithium ✓ Cadmium ✓ Cobalt

Other chemical parameters and water hardness (9): ✓ Nitrate ✓ Nitrite ✓ Magnesium ✓ Calcium ✓ Potassium ✓ Sodium ✓ Phosphorus ✓ Sulfate ✓ Water hardness

Chemical and microbiological water testing in one test

With Combi, you receive information about selected chemical substances as well as the microbiological parameters tested. This helps you assess your water quality and identify whether further investigations may be necessary if any results are unusual.

Important note: The Combi Water Analysis only tests the parameters listed above. Testing for Legionella, PFAS or pesticides is not included. Separate analyses are required for these substances and microorganisms.